Performance analysis of multilevel inverters fed induction motor

Abstract

Power electronic inverter is a circuit that converts direct power to newlinealternative power Inverters are commonly used to supply AC power from DC newlinesources such as solar panels or batteries It is widely used in industrial power newlineconversion systems both for utility and drives applications Induction motor is newlinepopularly used in industries due to ruggedness and robustness It is mainly newlineused for constant speed applications because of the unavailability of the newlinevariable frequency voltage supply The advancement of power electronics has newlinemade it possible to vary the frequency of the voltage A variable frequency newlinedrive using two level inverter controls the operating speed of an AC motor by newlinecontrolling the frequency and voltage of the power supplied to the motor newlineThus it has extended the use of induction motor in variable speed drive newlineapplications The performance of the induction motor is affected due to the newlinehigh Total Harmonic Distortion THD produced by the conventional two newlinelevel inverters newline newline